It can lead to a large loss of protein and other nutrients. Because of the large amount of flaking of the sickle, the protein, vitamins and folic acid that make up the skin are lost. If the skin lesions are prolonged for years and spread all over the body, it will lead to hypoproteinemia, malnutrition anemia. Clinical manifestations are weakness, tiredness, pallor, easy to catch a cold and other sick and fresh symptoms. Delightful hunting! 萶 ? Cream ================ ===== The Great Wall is not just a single wall, but a complete system of defense engineering consisting of a variety of fortifications such as walls, enemy towers, passes, piers and forts, battalions, guardhouses, and town beacon towers. This defense engineering system, by all levels of military command system layers of command, section control. [1]? The body of the wall The body of the wall is the main part of the wall, the average height of 7.8 meters, some sections up to 14 meters. Where the hillock is steeply constructed lower, flat places are constructed higher; tight places are higher, general places are lower. The body of the wall is the main part of the defense against the enemy, and its total thickness is wide, with a foundation width of 6.5 meters, and the average width of the wall's floor is also 5.8 meters, which ensures that two covered wagons can run parallel to each other. The wall consists of an outer gable wall and an inner gable wall, filled with clay rubble wall construction outer gable wall is the side of the outer skin wall to the outside of the city. When constructed, there is a distinctive closing score, which is generally 125% of the height of the wall. The closing of the wall, can increase the width of the lower part of the wall, enhance the stability of the wall, strengthen its defensive performance, and make the outer wall majestic. The inner eaves wall is the outer skin wall inside the city side, the construction of the general lack of obvious points, constructed as a vertical wall, about the thickness of the outer eaves wall, generally to "stack" at the thickness of the wall shall prevail, the thickness of a brick and a half wide, according to the proportion of the points, the lower the thicker. The brick masonry method is mainly flat masonry. The wall of the Great Wall is the main part of this defense project. It was built in the high mountains or plains, according to the topography and the need for defense function and construction, where in the plains or the main passes of the construction is very tall and strong, and in the high mountains is relatively low and narrow, in order to save manpower and costs, and even some of the most precipitous place can not be built on the place will be taken to the "mountain wall" and "split the mountain wall" and "split the mountain wall". "Split mountain wall" approach, in Juyongguan, Badaling and Hebei, Shanxi, Gansu and other areas of the Great Wall, generally an average of about 7, 8 meters high, the bottom of the thickness of about 6, 7 meters, the top of the wall is about 4, 5 meters wide. On the top of the wall, the inner side of the Yu wall, more than 1 meter high, in order to prevent the patrol soldiers fell, the outer side of the wall set up palisades, about 2 meters high, palisades wall of the upper part of the lookout, the lower part of the shot hole and ring stone hole, to watch the enemy and shooting, rolling put the ring of stone use. On the top of some important walls, there were layers of barricades to resist the enemy in case of ascending the walls. By the middle of the Ming Dynasty, when Qi Jiguang, a famous general in the fight against Japanese invasion, was transferred to be the general of Jizhen, he made significant improvements to the fortifications of the Great Wall, and set up enemy buildings or platforms on the top of the wall to accommodate soldiers on patrols and to store weapons and food and stockings, which greatly strengthened the defensive function of the Great Wall. [1]? The structural content of the wall is based on local climatic conditions, the general view of the Great Wall construction methods, there are the following types: 1. version of rammed earth wall; 2. adobe wall; 3. brick wall; 4. stone wall; 5. mixed masonry brick and stone masonry; 6. bar stone; 7. clay connected to the brick. The wall is built by brick, stone, and mixed brick and stone masonry. When the slope of the terrain is small, the masonry bricks or stones are parallel to the terrain, while when the slope of the terrain is large, the masonry is built by the method of horizontal fall. There are a large number of beacon flints (beacon towers) set up in the system of the Great Wall as the information transmission system, which is the oldest but effective message transmission method. In ancient times, there were two kinds of signals for border defense alarms. In case of hostile situation, the smoke released during the daytime was called "beacon", and the fire raised at night was called "flint", which was connected to the platform to transmit the message. Smoke during the day, fire at night, because the sun is very strong during the day, the fire is not easy to see, smoke relative attention; and night smoke is not obvious, the fire can be seen from a distance, which is a very scientific method. In order to report the number of enemy soldiers, but also the number of smoke, the number of fires to distinguish. To the Ming Dynasty also in the number of burning smoke, fire at the same time plus the sound of artillery, in order to enhance the effect of the alarm, so that the military situation can be quickly conveyed thousands of miles away. According to the Ming Dynasty system, raise a smoke sound a cannon that comes to the enemy about 100 people; raise two smoke sound two cannons, come to the enemy about 500 people; more than 1,000 people raise three smoke sound three cannons. Beacon flints according to the configuration of the location and function, beacon flints can be divided into four groups: located in the desert deep beacon is the front line of the alarm, set up along the Great Wall on both sides of the beacon along the transmission of intelligence, by the Great Wall to the capital of a series of beacons with the dynasty of the central contact, there is also a group of beacons and the Great Wall is located in the vicinity of the local government and the garrison contact. Beacon flints were built before the Great Wall, but since the appearance of the Great Wall, the beacon towers along the Great Wall have been closely integrated with the Great Wall, becoming an important part of the Great Wall's defense system, and some of them were built on top of the Great Wall. Beacon flints in the Han Dynasty called beacon beacons (beacon waiting), pavilion flint, the Tang and Song Dynasty called beacon platform, and the word "beacon flint" is also extended to beacon platform, the Ming Dynasty is generally known as the smoke pier or pier (Northwest Ming Dynasty piers, the large and the function of the enemy, the small is expected to be only without the function of the beacon point). Beacons are generally about 10 miles away from each other, the Ming Dynasty also has a distance of about 5 miles. Beacon flint layout is also very important, the key for its layout in the high mountains or peaks and turns of the place, and must be close to the three beacons are in each other's field of vision, in order to view at any time and pass the news. Beacon flints in addition to the transmission of military intelligence, but also for the coming and going envoys to protect the security, provide food and lodging, supply of horses and grain and other services. Some sections of the Great Wall only have beacon towers, pavilions and flints without walls. [1]? Castle Castle according to the level is divided into guard city, guard or dry household city and fort city, according to the defense system and military system requirements configured in the Great Wall on the inside, between the wall outside the person. The first stage of the Great Wall - Zhenbeitai guards, the distance between the city is about more than 100 miles, the perimeter of the guard city 6-9 miles, the perimeter of the city of 1,000 households 4-5 miles, brick walls, outside the horse face, the corner of the tower, the city gate to build urns, and some gates outside the gate to build a moon city or the urn door of the wing of the city to strengthen the control and defense of the city gates. Inside the city, there are government offices, barracks, residential buildings and temples. The distance between the city and the Great Wall is either close or far, depending on the location of the Great Wall, the terrain is gentle, and it is easy to build places for cultivation. The fortresses or border fortresses were spaced about 10 miles apart, with a circumference of 1-3 miles, brick-packed walls, 1-2 gates, and urn gates. Inside the city, there are garrison barracks, school grounds, temples, and the distance between the border fort and the Great Wall is generally not more than 10 miles, so that the city can be quickly boarded in case of police. The Jiayuguan Pass is the most centralized defense position on the Great Wall defense line. The location of the fortress is critical, are selected in favorable defensive terrain, in order to receive a very small number of troops to resist the effect of the powerful invaders, the ancient saying "a man when the gate, ten thousand men can not open", vividly illustrates the importance of the fortress. Along the city's barrier city has a large and small, a lot of. In terms of the Great Wall of the Ming Dynasty, there are nearly 1,000 large and small passes. Some of the large customs near the city also has many small customs, such as the Shanhaiguan nearby there are more than ten small customs city, *** with the composition of the Great Wall of the defense engineering building system. [1]? Degree series in a long time, the early dynasties of the Great Wall most of the wreckage, preserved more complete is the Great Wall built in the Ming Dynasty, so people generally say that the Great Wall refers to the Great Wall of the Ming Dynasty, the length of the Great Wall, also on the length of the Great Wall of the Ming Dynasty. The State Administration of Cultural Heritage and the State Bureau of Surveying and Mapping on April 18, 2009 jointly Badaling Great Wall, the Ming Great Wall from Liaoning Hushan in the east, west to Jiayuguan in Gansu, from east to west through Liaoning, Hebei, Tianjin, Beijing, Shanxi, Inner Mongolia, Shaanxi, Ningxia, Gansu, Qinghai ten provinces (autonomous regions, municipalities directly under the Central Government) of the 156 counties, with a total length of 8851.8 kilometers. After the trench 359.7 kilometers, natural natural dangers 2232.5 kilometers. 12 June 5, the State Administration of Cultural Heritage in Beijing Juyongguan Great Wall announced that after nearly 5 years of investigation identified, the total length of the Great Wall of China's successive generations of the Great Wall of China 21,196.18 kilometers, including the Great Wall Wall wall, trench, monolithic buildings, the Great Wall of the Great Wall heritage, such as the pass fortresses and related facilities, 43,721 places. This is the first time that China has scientifically and systematically measured the total length of the Great Wall through the ages. The survey and identification of the Great Wall not only recognized the length of the Ming Great Wall measured in 2009, but also carried out resource surveys of the Great Wall of the Qin and Han Dynasties and other eras. [30]? The important customs and passes of the city in 1580 are: Jiayuguan Pass, Shanhaiguan Pass, Juyongguan Pass, Yumen Pass, Well Defile Pass, Niangziguan Pass, Yanmen Pass, Yitouguan Pass, Pingxingguan Pass, Gubeikou Pass, Xifengkou Pass, Yulinsei, Huangyaguan Pass, Wabqiao Pass, Hushan Great Wall, Crow's Migratory Pass, Niuzhuang Castle, Fenshuiguan Pass, Ningyuan Castle, Yangguan Pass, Pindingbao Castle, Qingyangguan Pass, Xin'anguan Pass, Zhenyuan Pass, Jinzhou Castle, Mashukou Pass, Pouring Maiguan, Jiumenmen Gate, Laolongtou Dongjiakou, Liujiakou, Malan Pass, Xinkaikou, Jiejiling Pass, Jinshanling, Dushikou, Zhangjiakou, Mashikou, Yangfangbao Pass, Shuikou Pass, Zijing Pass, Xuanhua City, Santunying, Sandou Pass, Damaoshan Pass, Yiyuan Pass, Jieling Pass, Chongyu Pass, Xuliaokou, Lengkou Pass, Baiyanguguan Pass, Qingshan Pass, Tiemen Pass, Panyiakou, Longjing Pass, Hongshangkou, Shangguan, Changyukou, Wolvogou Pass, Xinhekou, Baishikou Pass, Futuyu Pass, Wulonggou Pass, Feixukou, Widow's House, Simatai, Mutianyu Pass, Yanhecheng, Shogun's Pass, Baima Pass, Lupi Pass, Hefengkou, Lianhuachi Pass, Huanghuacheng Pass, Dangdaokou Pass, Jiukonglou, Sihaiyekou, Juyansai Furusheng, Jiluxe, Gaoquexue, Datongcheng, Kihukou, Weilu Fortress Kou, Jinliao Pass, Huangzhe Pass, Huangyuguan Pass, Yulululoukou, Ningwuguan, Limin Fortress Kou, Deshengkou, Zhenhong Fortress, Pingyuan Fortress, Xinping Fortress, Baoping Fortress, Huamen Fortress, Wayaokou Fortress, Zhenning Fortress, Zhenkou Fortress, Shoukou Fortress, Zhenbian Fortress, Zhenchuan Fortress, Hongzhi Fortress, Zhenqiang Fortress, Refusing Wall Fortress, Refusing Gate Fortress, Helping Horse Fortress, Breaking Luhu Fortress, Bao'an Fortress, Ningluhu Fortress, Breaking Hu Fortress, Remnant Hu Fortress, Horse Fortress, Yunshi Fortress, Shaojia Fortress, Dahuo Fortress, Defeating Hu Fortress, Yingen Fort mouth, blocking the Tiger Fort mouth, generals will be Fort, Yajiao Mountain, the old camp Fort, the red door, the old cattle Bay Fort, Yangfangkou, Baichaoguan mouth, Guangwucheng, Beilou mouth, the Wolf's tooth mouth, Longquan Pass, the solid pass, Heduling mouth, Maling Pass, Zhipanling mouth, the Jungji Pass, Wuqi Qin Great Wall, and so on. The Tableland Customs Pass, known as the first pass under the sky, is located 15 kilometers northeast of Qinhuangdao City, Hebei Province, Hebei Province, where the Great Wall of China enters the sea. The total length is 26 kilometers, mainly including: the Old Dragon Head Great Wall, the South Wing Great Wall Guancheng Great Wall, the North Wing Great Wall, the Jiao Shan Great Wall, the Sandaoguan Great Wall and the Jiumen Great Wall and other sections. The Old Dragon Head Great Wall is the end part of the Great Wall into the sea. It consists of seven castles, namely Guancheng, Dongluocheng, Xilocheng, Nanwingcheng, Northwingcheng, Weiyuancheng and Ninghaicheng, and is surrounded by a 4,769-meter-long, 11.6-meter-high and 10-meter-thick wall, which is tall, solid and magnificent. In the east, west, south and north of the city built four gates, the city's southeast corner, northeast corner of the corner of the corner of the corner of the city, the city in the middle of the majestic Bell and Drum Tower. The entire acropolis building scale is magnificent, solid defense works. Shanhaiguan is the Ming Dynasty to create a "guard system," the product of the Ming Dynasty's "Tuntian system" and reform policies and the consolidation and development of Shanhaiguan played an important role. [31]? The Shanling Great Wall The Shanling Great Wall is located in the Yanshan Mountain Range on the border between Miyun County and Luanping County, Chengde City, Hebei Province. It starts from Longyukou in the west and ends at Wangjinglou in the east, with a total length of 10.5 kilometers. Along the line, there are 67 enemy towers with different buildings, 2 beacon towers, 5 large and small passes, here on the Great Wall, the enemy towers are dense, generally 50-100 meters a wall, the wall is based on boulders, 5-8 meters high, and there is a stopping wall, pallet wall and barricade, in various forms, each with its own characteristics. [32]? In 1984, 19 towers were restored, and the wall was 3,741 meters long, bringing the total area for touring to 19,000 square meters. 1986, Badaling was named one of the 16 Scenes of New Beijing, and in 1987, the United Nations accepted the Great Wall of China as a "World Cultural Heritage Site."[33] In August 1991, the Great Wall of China was named one of the 16 Scenes of New Beijing by the Beijing Imperial Palace, and the Great Wall of China was named one of the 16 Scenes of New Beijing. In August 1991, the Badaling Great Wall received a certificate of Cultural Heritage of Humanity from UNESCO at the Forbidden City Museum in Beijing, and in December 1991, Badaling was recognized as one of the Top 40 Tourist Attractions in China. [34]? Realm Gate Great Wall Realm Gate Great Wall is located in Zhangjiakou City, Hebei Province, the Great Wall, the only one in the Great Wall named after the gate, the Great Wall, one of the four major passes of the Great Wall, the Great Realm Gate Great Wall was constructed in the Ming Dynasty during the reign of the Chenghua, is located in the towering east and west of the Taiping Mountains, according to the Great Wall of the main passes, the lock and key to the border passes. The Dajingmen Wall is 12 meters high, 13 meters long and 9 meters wide. On the west side, there is the West Realm Gate (Small Realm Gate), which was excavated during the Wanli reign of Ming Dynasty. In the scenic area, there are many historical relics of the Ming and Qing dynasties, such as the West Taiping Mountain Great Wall Park, Laiyuan Fort, Xiaojiamen Gate, Guandi Temple, Erlang Temple, Mountain God Temple and so on. The Great Wall is about 3 kilometers north of Shanhaiguan, Qinhuangdao City, Hebei Province, and is the highest peak of the barrier of the mountains north of the city of Yanshan, with an altitude of 519 meters. Its peak for the big flat top, flat wide can sit hundreds of people, there is a huge stone Saga, like a dragon head wearing horns, so the name. Horn Mountain is the Great Wall of China from the old dragon's head, northward across the first peak, so people also call it "the first mountain of the Great Wall of China". The Great Wall was built in the early years of the Ming Dynasty, from the foot of the dry gate to the top of the large flat **** 1536 meters. Most of the wall is made of local materials, masonry, local bricks and long stone masonry, the height and width of the Great Wall of JiaoShan Mountain, there is a distinctive feature of following the trend of the mountain. The height of the Great Wall here is generally 7-10 meters, and the width is 4-5 meters on average. In the steep mountains, there are also cliffs that can be narrowed to 2.7 meters wide. These sections of the wall are very steep on the outside, making it difficult to attack; on the inside, they are very low, making it easy to climb the wall and fight. [35]? Mountain pass water gate mountain pass is located in Hebei province Qianxi county in the north, because of the pass on both sides of the big green mountain and named, was built in Ming Hongwu years, the road outside the guard up to the grasslands of northern Sebei, the interior directly to the town of Jizhou province three Tun camp, the geographic location is very important. Pass city on both sides of the mountains on the arch, the Great Wall of China from the south to the sky, which winds west, more seemingly dangerous topography of the Qingshan Pass, majestic. According to historical records, Qingshan Pass after the construction of the pass and many times rebuilt, especially the national hero Qi Jiguang rate and Mongolia Duo Yan Department in this two battles, Qi Jiguang in the original foundation personally supervised the repair of the Great Wall of Qingshan Pass, formed the existing pattern. The water gate of Qingshan Pass is known as the first gate of the Great Wall, and it is the only well-preserved water gate of the lifting type along the Great Wall so far. After the restoration of the water gate, only half of the slots that housed the pull-down gates remain. [36]? Mutianyu Great Wall The Mutianyu Great Wall is located in Huairou District and is one of the new sixteen scenic spots in Beijing. West of Juyongguan Great Wall, east of the Gubeikou, open 2250 meters of the Great Wall section of the Great Wall is characterized by both sides of the Great Wall have palisades, especially the main pass platform three enemy towers and stand, the famous landscape arrow buckle, ox horn edge, eagle flying inverted and so on is located in the west of the Mutianyu Great Wall. 1992 was rated as the world's best in the Beijing Tourism. 2002 was rated as the 4A scenic area. Due to its important geographic location, Mutianyu has been a military stronghold defending Beijing since ancient times. This section of the Great Wall is connected to Juyongguan Pass in Beijing's Changping County in the west and Gubeikou Pass in Beijing's Miyun County in the east, which was built during the Ming Dynasty and is known as the "Dangerous Ridge of Heroic Passes". [37]? Simatai Great Wall The Simatai Great Wall is located in Gubeikou Town, northeast of Miyun County, Beijing, 120 kilometers from Beijing. The Great Wall of Simatai starts from Wangjing Building in the east and ends at Houchuankou in the west, with a total length of 5.4 kilometers, *** there are 35 enemy towers, and the whole section of the Great Wall is well-conceived and peculiarly designed. Prof. Luo Zhewen, an expert on the Great Wall, once commented that the Great Wall of China is the greatest in the world, and Simatai Great Wall is the greatest of the Great Wall of China. The Simatai Great Wall was inscribed on the World Heritage List in 1987, and is a national key cultural relics protection unit, the only ancient architectural site in China that retains the original appearance of the Ming Dynasty. [38]? Beikou Great Wall The Gubeikou Great Wall, located in Luanping County, Chengde City, Hebei Province, is the most complete Great Wall system in the history of the Great Wall of China. It consists of the Northern Qi Great Wall and the Ming Great Wall*** together, and includes four city segments: Wolhu Mountain, Panglong Mountain, Jinshanling and Simatai. Gubeikou is Shanhaiguan, Juyongguan two passes between the Great Wall fortress for the Liaodong Plain and Inner Mongolia to the throat of the Central Plains, has always been a place of war, especially in the five dynasties of Liao, Jin, Yuan, Ming, and Qing, large and small battles for the Gubeikou has never ceased, so the Great Wall's role appears particularly important. [39]? Arrow Button Great Wall Arrow Button Great Wall is located in Beijing Huairou County (formerly belongs to the city of Chengde, Hebei Province), northwest of eight Road River Township, about 30 kilometers from Huairou County, the mountain terrain is very rich in change, the Great Wall above the dangerous peaks and cliffs also appear more majestic and dangerous. The Arrow Buckle Great Wall is named after a section of the Great Wall that winds in the shape of a W, like a bow full of arrows. The Arrow Buckle Great Wall is one of the most treacherous and majestic sections of the Great Wall in Beijing, with serious natural weathering and no artificial modifications, stretching more than 20 kilometers from the Ox Horn Edge, the South Building, the Ghost Gate Pass, the Arrow Buckle Beam, the East and West Shrinking Neck Towers, the Top of the East and West Oil Baskets, the General's Guardian Pass, the Heavenly Stairs, the Eagle's Flight Inverted Tilt, the Nine Eyes Building, and the Beijing Knot to the Watching Beijing Building. [40]? Zhenbeitai Zhenbeitai built in the Ming Wanli thirty-five years (1607), from the historical and cultural city of Yulin, Shaanxi Province, three kilometers, is the Great Wall site in the most magnificent, the most majestic building, but also the Great Wall on the most majestic military fortress and observation post, there is the Great Wall of China "three wonders of the" one of the "east of Shanhaiguan, in the middle of the Zhenbeitai The Great Wall of China is one of the "three wonders of China" (Shanhai Pass in the east, Zhenbei Terrace in the middle, Jiayuguan Pass in the west) and "the first platform under the sky". It is an important part of the Great Wall, a world cultural heritage, and a national key cultural relics protection unit. [41-42] Zhenbei Terrace according to the danger of the next, was square, **** 4 layers, more than 30 meters high. Terrace base north 82 meters long, south 76 meters long, east and west of 64 meters, covers an area of 5056 square meters. The Great Wall of Gansu PassThe Great Wall of Gansu Pass is located in the southwest corner of Jiayuguan City, named because it was built at the foot of Jiayu Mountain, is the starting point of the western end of the Great Wall of Ming Dynasty, which was built in the fifth year of Ming Dynasty, Hongwu (1372), and it is the most well-preserved one along the Great Wall of Ming Dynasty, the first pass of the western part of the river, and an important stop on the Silk Road. The city pass by the inner city, the outer city and the city trench composed of a complete defense system, rammed loess and become, outsourcing the city brick, strong and majestic. The plane of the city is trapezoidal, with an area of more than 33,500 square meters, the total length of the city wall is 733 meters, and the height is 11.7 meters. City Hall east, west symmetry, face three, surrounded by corridors, three-story hermit roof 17 meters high, majestic. Guancheng four corners of the corner of the corner, two-story high, shaped like a bunker. Climbing Guanlou look into the distance, the scenery of the outside world as far as the eye can see. [43]? Tiger Mountain Great Wall Tiger Mountain Great Wall is located in Dandong City, Liaoning Province, 15 kilometers east of the Yalu River Tiger Mountain Scenic Area, Tiger Mountain, the main peak height of 146.3 m. Peak is the first beacon platform of the Great Wall of China. Standing on the beacon and looking around, the Yizhou of North Korea, the Mashi sandbar of China, and the Yalu River Bridge connecting Dandong and Sinuiju are clearly visible. [44]? Jiumenmen Great Wall The Jiumen Great Wall is located in Xintaizi Village, Lijia Township, Suizhong County, Liaoning Province, 15 kilometers from Shanhaiguan, with a total length of 1,704 meters. The southern end of the Great Wall starts from the dangerous peaks and walls, and connects with the Great Wall coming from the direction of Shanhaiguan. Since then, the Great Wall has been extended northward along the mountain ridge to the south bank of the local Jiujiang River, and on the 100-meter-wide Jiujiang River, a huge-scale bridge across the river was built, thus winding northward between the mountains. "The city walks on the water, and the water flows in the city." is the image of the Great Wall at the entrance to the Nine Gates. [45] The Great Wall of Datong was one of the nine major towns of the Ming Dynasty, and was strategically important. The Great Wall of Datong was built during the Jiajing period, and was created and repaired by Weng Wanda, the governor of Xunda. Datong Town Great Wall from the east of Tianzhen County Zhenkoudai, west to Yajiao Mountain (now Inner Mongolia Qingshuihezi), a total length of 335 kilometers. According to the "three clouds chip altar exam - Datong general town map" statistics, Datong town has repaired the big side, the two sides of 516.3 miles; Castle 72 (City 20, Fort 52); Border City 776; fire road pier 833. Key cultural relics protection units for Shanxi Province. [46] Youyongguan "the world's most majestic pass" called the Juyongguan is the longest history of the Great Wall, one of the most famous passes. Juyong Pass is located 48 kilometers northwest of Beijing, in the Guangu Canyon. It is surrounded by two steep mountains and a stream of water. Inside the pass city, there are temples, offices, pavilions and barns. The canyon where Guancheng is located belongs to the Jundu Mountain of Taihang Remnant Vein, which is famous for its danger. Successive generations of writers and artists have left many poems of praise here, and Qianlong also mentioned the four words "Juyong Jiecui", which has become the first of the famous "Eight Scenes of Yanshan. [47] Yanmen Pass Great Wall Yanmen Pass, also known as the West Defile Pass, known as "dangerous", "the world's nine plugs, Yanmen for the first" said. Located in Shanxi Province, China Xinzhou City, Daixian County, about 20 kilometers north of the Yanmen Mountains, is an important pass on the Great Wall, and Ningwuguan, Yiguan is known as the "outer three passes". 2001, Yanmen Pass was announced by the State Council of the Chinese People's Republic of China as one of the fifth batch of national key cultural relics protection units. The ancient name of Yanmen Mountain is Gouzhi Mountain. Here, the peaks rise up, the terrain is dangerous. Build Yanmen Pass "outside the strong with the feudal guards, the internal solid Taiyuan of the key, the root of the three passes, the throat of the whole Jin?" The story goes. Legend has it that every year in spring, the south geese flying north, mouth reed leaves, flying to the Yanmen circling for a long time, until the leaves fall squarely across the border. Therefore, there is "Yanmen Mountain, geese fly out of its center". In 52 years, the Chinese government organized and carried out the maintenance project of the Great Wall of Juyongguan, Badaling and Shanhaiguan, which was the first batch of Great Wall protection and maintenance projects in New China.[48] The Great Wall of China is the first of its kind in China, and it is the only one in the world. [48]?On March 4, 961, the Great Wall-Badaling, the Great Wall-Shanhai Pass, and the Great Wall-Jiayuguan were listed by the State Council as the first batch of national key cultural relics protection units. [49]?In December 987, the Great Wall was listed as a World Heritage Site. [9]?On September 20, 2006, the 150th executive meeting of the State Council passed the Regulations on the Protection of the Great Wall, which came into effect on December 1, 2006. [50]?In 2008, Shandong launched the "Great Wall of Qi resources survey" project, after nearly four years of unremitting efforts, completed the early field survey of the Great Wall, for the first time to realize the Great Wall of Qi comprehensive investigation, and ultimately confirmed that the total length of the Great Wall of Qi is 641322.40?meters. Based on the detailed information obtained from the resource survey of the Great Wall of Qi, the General Protection Plan of the Great Wall of Qi was compiled and completed. [In 2011, the State Administration of Cultural Heritage (SACH) basically completed the work of the "Four Great Walls" of the Ming Great Wall and improved the Great Wall resource information system. [51]? The Great Wall In 2012, the State Administration of Cultural Heritage completed the measurement of the Great Wall and published the data. [52] In 2013, the State Administration of Cultural Heritage issued "China's World Cultural Heritage Monitoring and Early Warning System Construction Plan", carried out 10 pilot monitoring of the World Heritage Sites, and guided localities to do a good job in the Great Wall's protection and maintenance and the "four yeses" basic work. [53]?On April 27, 2015, the State Administration of Cultural Heritage approved and responded to the "Petition on the Preparation of the Project for the Protection Planning of the Mudanjiang Border Wall" (Heiwen Guanzi [2014] No. 17), agreeing to the preparation of the project for the preparation of the protection planning of the Mudanjiang Border Wall. [54]?04.30.015, the State Administration of Cultural Heritage approved the reply "on the Yulin Acropolis North Gate Guangyu Gate repair project project instructions" (Shaanxi cultural relics word 〔2014〕 No. 81), agreed to Yulin Acropolis, Shaanxi Province, the North Gate Guangyu Gate repair project project (the Great Wall identified code: 610802353102170029). [55]?On April 30, 2015, the State Administration of Cultural Heritage replied to the Request for Submission of the "Great Wall of Qi - Rescue Protection Program for the Section from Shijiakuang Dongshan of Huangdao to Xishan of Shan Zhoucun" (No. 459 of Lu Wenfa [2014]), agreeing in principle to the reported protection program for the section from Shijiakuang Dongshan of Huangdao to Xishan of Shan Zhoucun of the Great Wall of Qi. [56]?On April 30, 2015, the State Administration of Cultural Heritage approved "on the Great Wall of the Ming Great Wall Qingshuihe Shihuliang section of the Great Wall cultural relics protection and repair project instructions" (Inner Cultural Relics Fa [2014] No. 282), agreed to the Great Wall of the Ming Great Wall of the Qingshuihe Shihuliang section of the protection and repair project. [57]?015 May 05, the State Bureau of Cultural Heritage approved the "on the report of Hedian City City site east wall, north wall repair works program instructions" (Liao cultural relics [2015] No. 49), agreed in principle to the reported Hedian City site (the Great Wall identified code: 210624353102170007) east wall, the north wall repair works program. [58]?015 May 18, the State Administration of Cultural Heritage approved the "on the report of the Great Wall of Damao Fort rescue and reinforcement project - the east wall, the south wall of the program instructions" (Liao cultural relics 〔2015〕 No. 54), agreed in principle to the reported Great Wall of Damao Fort (the Great Wall identified code: 210781353102170002) east wall , the south wall rescue and consolidation engineering program. [59]?On 12.06.15, the State Administration of Cultural Heritage approved the "Report on the Submission of Jiayuguan City Drinking Water Source Relocation Project Water Supply Pipeline Through the Great Wall Cultural Relics Protection Program" (Ganwen Bfa [2015] No. 183), agreed in principle to the reported Jiayuguan City Drinking Water Source Relocation Project Water Supply Pipeline Lines 2, 4, 5, and 6 to adopt the jacking pipe method from the ground through the Great Wall of the B program. [60]? The Great Wall June 08, 2015, the State Administration of Cultural Heritage approved the "report on the Ming Great Wall Linze section repair (a) project project" (Gan Wenbafa [2015] No. 70) received, agreed to the Ming Great Wall Linze section repair (a) project. [61]?015 June 09, the State Bureau of cultural relics replied "on the Great Wall of Beijing Mentougou section along the word No. 7-11 enemy platform rescue repair project project instructions" (Beijing cultural relics [2015] No. 42), agreed to the Great Wall of Beijing Mentougou section along the word No. 7-11 enemy platform rescue repair project. [62]?On September 24, 15, the State Administration of Cultural Heritage approved the "on the west of Mengxi to central China railroad coal transportation corridor collection and transportation system Jingbian to Shenmu collection and transportation railroad construction project across the Great Wall program instructions" (Shaanxi cultural relics word [2015] No. 172) [63]?On September 28, 2015, the State Administration of Cultural Heritage approved the "on the new Chifeng to Beijing-Shenyang high-speed rail station Kazuo station railroad project across the Great Wall of Yanbei site of the instructions" (Nei cultural relics hair [2015] No. 205) [64]?On September 28, 2015, the State Administration of Cultural Heritage approved the "on the Beijing Yanqing County under the Sakaquan building restoration project project instructions" (Beijing cultural relics [2015] No. 381) [65]?On September 28, 2015, the State Administration of Cultural Heritage approved the "on the submission of" the Great Wall of Qi site (Anqiu Dacha Mountain section) protection and repair project project project report "(Luwenfa [2015] No. 86) [66]?015 September 28, 2005, the State Administration of Cultural Heritage replied "on the submission of the Great Wall of Qi - ShuiQuanShuXiShan section of the rescue and reinforcement project project report" (LuWenFa [2015] No. 13), agreed to the Great Wall of Qi ShuiQuanShuXiShan section of the reinforcement and protection of the project. [67]?On September 28, 2015, the State Administration of Cultural Heritage approved "on the submission of the Great Wall of Qi - Zichuan District Qinglongshan to Chengzi section salvage protection project project report" (Lu Wenfa [2015] No. 14), agreed to the Great Wall of Qi, Zichuan District, Qinglongshan to the city of the section of salvage protection project project. [68]?On September 28, 2015, the State Administration of Cultural Heritage approved the "Report on the Submission of the Construction Project of the First-Level Highway from Minqin (County) to Hongshagang through the Cultural Relics Protection Program of the Great Wall" (GANWENBAFA [2015] No. 218). [69]? City 015 October 12, the State Administration of Cultural Heritage approved the "on the submission of the Lan Yu electric railway Yangjiachuan traction station 110 kV power supply project through the Lintao County Warring States Qin Great Wall disappeared section of the cultural relics protection program report" (Ganwen Bureau hair [2015] No. 219). [70]?On October 12, 2015, the State Administration of Cultural Heritage approved the "on the approval of Mengxi - Tianjin South 1000 kV ultra-high voltage AC transmission project across the Northern Qi Great Wall in Daixian Changcheng Village 1 section of the cultural relics protection program of the instructions" (Jin cultural relics 〔2015〕 234th). [71]?015 October 26, the State Administration of Cultural Heritage approved "on the submission of the Great Wall of Qi - Boshan District, two flat to Xigouyu North Mountain section of the salvage protection project project report" (Lu Wenfa [2015] No. 81), agreed to the Great Wall of Qi Boshan District, two flat to Xigouyu North Mountain section of the salvage protection project. [72]?15 November 25, the State Bureau of Cultural Heritage approved the "on the application of the Ming Great Wall Fanzhi County Zigouying section should be shut down the East Gate protection repair project project instructions" (Jin cultural relics [2015] No. 47), agreed to the Ming Great Wall Fanzhi County Zigouying section should be shut down the East Gate protection repair project project. [73]?015 November 24, the State Administration of Cultural Heritage approved the "Huairou District arrow buckle 146th enemy building to 150th enemy building and the Great Wall (ladder to the eagle fly upside down) repair project program of the instructions" (Beijing cultural relics [2015] No. 504), agreed in principle to the reported Huairou District arrow buckle 146th enemy building to the 150th enemy building and the Great Wall (ladder to the eagle fly upside down) repair project program. [74]?16 May 5, the State Administration of Cultural Heritage approved the "on the submission of the new Chongli Railway through the Great Wall site design program of the instructions" (Ji cultural relics word [2016] No. 68), agreed in principle to the reported new Chongli Railway by tunneling through the Great Wall of the Dajianshan Mountain, section 1, the Great Wall of the village of Zhengpantai, section 4, the Great Wall of the northeastern side of the Xiaokouliang, the Yingqiao two beacon, turn the mountain of the first beacon of the program. [75]?On May 6, 2016, the State Administration of Cultural Heritage approved the "Report on Submitting the Design Plan for the Protection, Maintenance and Reinforcement Project of the Heifengkou Section of the Warring States Qin Great Wall in Huanxian County" (GANWENBAFA [2015] No. 319). [76]?16 May 6, the State Administration of Cultural Heritage approved the "on the submission of the Great Wall of Qi - Zichuan Qinglongshan and Guobaoquan village of the South Mountain section of the repair and protection program" (Luwenfa [2016] No. 20) [77]

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